Compile error when using CriteriaBuilder

Question

I am trying convert this JPA QL to criteria builder. JBoss 6.0.

\"SELECT ba FROM BankAccount ba WHERE ba.balance >= :amt ORDER BY ba.ownerName ASC\"
         


        

Answer 1

Well, I finally found the right way to call the gt() method. Here is the complete solution. Fully tested in JBoss 6.

public List findWithBalance(int amount) {
    CriteriaBuilder cb = em.getCriteriaBuilder();
    CriteriaQuery cq = cb.createQuery(BankAccount.class);
    Root from = cq.from(BankAccount.class);

    ParameterExpression balance = cb.parameter(Integer.class);
    cq.select(from);

    //Here is the trick!
    Predicate predicate = cb.gt(from. get("balance"), balance);

    cq.where(predicate);
    cq.orderBy(cb.asc(from.get("ownerName")));

    TypedQuery query = em.createQuery(cq);

    query.setParameter(balance, amount);

    return query.getResultList();
}